Ventilator



, April 25, 1933. A. JOHN 1,906,158

VENTILATOR Filed Sept. 19, 1932 2 Sheets-Sheet l E i 4 I i I r 1% Q E JLM .A Zar (70km, BY

ATTOR N EY April 25, 1933. A. JOHN 1,906,158

VENTILATOR Filed Sept. 19, 1932 2 Sheets-Sheet 2 2 Wm A? A 7 7 T T Z5 '2 7 40 Y /@EZ INVENTOR wrmzss: ATTORNEY Patented Apr. 25, 1933 UNITED STATES ALEX JOHN, OF PORT HURON, MICHIGAN vEN'rILA'roR Application filed September 19, 1932. 'Serial No. 653,905. L

The invention relates to a ventilator and more particularly to a roof ventilator.

The primary object of the invention is the provision of a Ventilator of this character, wherein ventilation of a building may be had through an opening in the roof thereof and a draft through such roof is promoted without liability of back draft, thus assuring proper and thorough ventilation within the building. i

Another object of the invention is the provision of a ventilator of this character, wherein the construction thereof is novel in form and in its use will enable a building to be ventilated through itsroof, a draft being eflected from the building base through the ventilator at the roof without back draft and thus assuring proper and thorough ventilation of the enclosure.

A further object of the invention is the provision of a ventilator of this character, wherein the same may be constructed to extend the full length of the roof of a building or at intervals throughout the full length thereof and in the construction of such ventilator a positive and thorough ventilation of an enclosure or the building will be assured.

A still further object of the invention is the provision of a ventilator of this character, wherein wide range and latitude of adjustment may be had for achieving maximum draft or for regulating the draft within an enclosure or edifice to assure thorough ventilation thereof and also that will exclude rain, snow, sleet or the like from entrance to the enclosure or edifice and also utilization of variable winds for draft efficiency in l the working of the ventilator.

A still further object of the invention is the provision of a ventilator of this character which is comparatively simple in construction, thoroughly reliable and efficient in its purpose, strong, durable, and inexpensive to manufacture and install.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described in detail, illustrated in the accompanying drawings, which disclose the preferred embodiment of the invention, and pointed out in the claims hereunto appended.

In the accompanying drawings:

Figure 1 is a fragmentary vertical sectional view through a building roof showing the ventilator constructed in accordance with the invention installed therewith, the ventilator being parly broken away.

Figure 2 is a fragmentary top plan view of the ventilator partly in section.

Figure 3 is an enlarged sectional view on the line 33 of Figure 1 looking in the direction of the arrows.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, A des ignates generally the roof of a building or edifice and has formed therein a suitable opening for association with the roof of a ventilator constituting the present invention and hereinafter fully described. This opening B in the roof may be the entire length of such roof orformed at intervals thereof and overhanging such opening is a hood 10, the same being formed with intermediate and outer slots 11 and 12 respectively, these being spaced the required distance from each other and are coextensive-with the'length of the hood. The hood 10 rises the required distance within a casing 13 which in its length corresponds with the length of the hood 10 and its endslt constitute ends'for the said 7 hood. The hood 10 at its oppositeends is secured to the ends 14 of the casing by the connecting strips 15.

The casing 13 hasat its top the reversely sloping cover sections 16 and from the same at intervals rise cupolas 17, the latter being aligned with each other and located medially at the top of the casing 18. Each cupola 17 is open at its uppermostportion and has overhanging the same a canopy 18, which latter is upwardly arched and is elevated from the open upper portion of said cupola so as to provide side vents thereto, the canopy being supported by brackets 19 which are fixed interiorly of the cupola at the" open upper end of the same.

Arranged at opposite sides of each cupola 17 at its base are spacer blocks 20 to which are fixed deflectors or ba-flles 21, these being vertically disposed spaced outwardly from the cupola 17 at opposite sides thereof and extend above the canopy 18 thereto. The deflectors or baffles 21 are formed with vents 22 in the lower portions thereof so that air passing through the ventilator will have a circuitous course, first through the opening B in the roof, thence through the slots 11 and 12 in the hood 10, whence the same will rise in the casing 13, and then through the cupolas 17 laterally between the same and the canopies 18 thereof and finally become divided to discharge upwardly and between the baffles 21 and through the vents 22 therein.

Arranged at the opening B in the roof A are horizontally disposed spaced parallel perforated pipes 23, these communicative with an air compressor (not shown) adapted to be located at the base of the enclosure or edifice so that on the operation of the compressor a forced draft will be created through the perforated pipes 23, causing an air draft within the ventilator and without a back draft due to the particular construction of such venilator.

In the use of the ventilator a thorough ventilation of the enclosure or edifice is assured and the variation of wind without will be effective for maximum and efficient up and out draft through the ventilator. The ventilator in its use is particularly adaptable for drawing off vapors, gas, steam saturated air. and smoke from within an enclosure or edifice and may be termed a heavy duty ventilating apparatus or air conditioner.

It should be obvious that the ventilator in the working thereof excludes back draft and eliminates ingress of snow, sleet, rain and wind currents.

The roof ventilator functions as an air conditioner and is particularly adapted for drawing off vapors, gases, steam, saturated air and smoke as the same creates a powerful draft for heavy duty ventilation and in the use of the pipes 23 this promotes circulation and renders the device more eflicient and effective.

What is claimed is:

1. A ventilator of the character described comprising a hood adapted to fit over a roof opening and having intermediate and outer slots, a casing coextensive with said hood and enclosing the same, a cupola rising from the top of the casing and communicative the-rewith and open at its upper portion, a canopy overhanging the open upper portion of said cupola, means supporting the canopy elevated with relation to said open upper portion of said cupola, and deflectors spaced outwardly beyond each side of said cupola and rising above the canopy thereof.

comprising ahood adapted to fit over a roof opening and having intermediate and outer slots, a casing coextensive with said hood and enclosing the same, a cupola rising from the top of the casing and communicative therewith and open at its upper portion, a canopy overhanging the open upper portion of said cupola, means supporting the canopy elevated with relation to said open upper portion of said cupola and deflectors spaced outwardly beyond each side of said cupola and rising above the canopy thereof and having openings in their lower portions.

3. A ventilator of the character described comprising a hood adapted to fit over a roof opening and having intermediate and outer slots, a casing coextensive with said hood and enclosing the same, a cupola rising from the top of the casing and communicative therewith and open at its upper portion, a canopy overhanging the open upper portion of said cupola, means supporting the canopy elevated with relation to said open upper portion of said cupola, deflectors spaced outwardly beyond each side of said cupola and rising above the canopy thereof and having openings in their lower portions, and compressed air perforated discharge pipes located in the roof opening for the discharge of compressed air into the hood for creation of upward air draft therein.

In testimony whereof I aflix my signature.

ALEX JOHN.

2. A ventilator of the character described I 

